DNA samples taken from anyone arrested?

In NYC for the state of the city address, Mayor Bloomberg apparently is proposing that DNA samples be taken from everyone arrested.

I think the idea is like the police running the ID of anyone who jumps a subway turnstile. If they’re naughty enough to jump a turnstile then they might have an outstanding warrant. Thus a ticket-able offense becomes a potential dragnet.

What could be the problem? Police already fingerprint people when they are arrested. And just like fingerprints, the DNA sample could finger the person being arrested for prior unsolved crimes. I think this idea should be expanded.

Let’s get samples of peoples DNA when they apply to any government program. Or even when people apply for a Social Security number. Get them when they are young. Think of the benefit, and best of all, if the person never commits a crime then they have nothing to be afraid of.

I guess even politicians get bad days. I don’t know why Mayor Bloomberg is channeling Rudy but that’s a dumb idea logistically as well as legally (maybe, IANAL).